CN106341031A - Magnetic-field modulated-type magnetic screw - Google Patents
Magnetic-field modulated-type magnetic screw Download PDFInfo
- Publication number
- CN106341031A CN106341031A CN201610821273.1A CN201610821273A CN106341031A CN 106341031 A CN106341031 A CN 106341031A CN 201610821273 A CN201610821273 A CN 201610821273A CN 106341031 A CN106341031 A CN 106341031A
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- China
- Prior art keywords
- magnetic
- iron hoop
- permanent magnet
- pole
- filament bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
Abstract
The invention discloses a magnetic-field modulated-type magnetic screw, belongs to the magnetic screw and linear magnetic gear field and relates to a contactless magnetic transmission linear driver. A rotor magnetic screw is formed by a radial magnetizing spiral permanent magnet and an electric iron bar. A linear mover is formed by a spiral electrician iron hoop and a non-magnetic material. A stator magnetic nut is formed by the radial magnetizing spiral permanent magnet and an electrician iron hoop. In the rotor magnetic screw, a permanent magnet surface is pasted to an external surface of the electric iron bar. In the stator magnetic nut, the permanent magnet surface is pasted to an internal surface of the electrician iron hoop. The linear mover is between the magnetic screw and the magnetic nut, and the three components are not contacted with each other and air gaps are arranged among the three components. Through mutual cooperation between the permanent magnet and a ferromagnetic material, an amount of the permanent magnets can be effectively reduced and simultaneously a linear stroke is added, and a thrust density and mechanical strength are increased.
Description
Technical field
The present invention relates to a kind of high pushing force density linear actuator technology, it is related specifically to magnetic Screw and linear magnetic gear
Etc. technical field.
Background technology
The features such as magnetic Screw has high pushing force density, contactless friction, safeguards simple, therefore in the such as aviation of a lot of occasions
The fields such as space flight, ocean power generation, artificial heart have good application prospect.At present, more to magnetic Screw research is forever
The surface-mount type magnetic Screw of n, s pole turn of the screw of magnet radial magnetizing, and this kind of structure has permanent magnet consumption many, linear rows
Journey is short, and in distance shift motion, permanent magnet may be affected by external environment condition, produces irreversible demagnetization etc. and asks
Topic.
Document ieee transactions on magnetics, 47 (10): 4477-4480,2011 (analysis of
A magnetic screw for high force density linear electromagnetic actuators) introduce
A kind of surface-mount type magnetic Screw, by extremely alternate to spiral type permanent magnet n, s of radial magnetizing Surface Mount on electrician's iron hoop.Compare
In other linear actuators although this structure can greatly lift pushing force density, increase gap density, but institute
The magnetic field modulation of the magnetic Screw introduced is single, and linear motion stroke is short, to increase stroke, only increases the use of permanent magnet
Amount.Price with permanent magnet material rises steadily, thus limiting the application progress of magnetic Screw.
Document ieee transactions on magnetisc, 50 (11): 8205004,2014
(electromagnetic lead screw for potential wave energy application) describes one kind
Electromagnetic type magnetic Screw, electrician's iron staff is fabricated to the structure of spiral slot, coiling in groove, is passed through straight in coil
Stream electricity, thus obtain spiral type magnetic circuit.Although this structure can reduce the consumption of permanent magnet in magnetic Screw, introduced
Electromagnetic type magnetic Screw.Because, by the way of electrical excitation, magnetic induction can be decreased obviously.The pushing force density deficiency producing is forever
The a quarter of magnetic-type magnetic Screw.Therefore, solve on the premise of reducing permanent magnet consumption using effective method, lifting is straight
The shift motion of line motion parts just has great importance and practical value.
Content of the invention
The purpose of the present invention is for overcoming the defect of prior art to propose a kind of magnetic-field modulation-type magnetic Screw, is ensureing
On the premise of reliability and economy, solution magnetic Screw magnetic field modulation is single, and movement travel is short, asking more than permanent magnet consumption
Topic.While ensureing high pushing force density and low permanent magnet consumption, increase the magnetic field modulation effect of magnetic Screw, improve magnetic force
The rectilinear movement stroke of leading screw.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that a kind of magnetic-field modulation-type magnetic Screw, bag
Include rotor magnetic filament bar, mover iron hoop and stator magnetic nut, three is sequentially coaxially installed by order from inside to outside, mover iron hoop with
Between rotor magnetic filament bar, between mover iron hoop and stator magnetic nut, it is respectively provided with air gap, air gap thickness is according to leading screw size and requirement
Choose；Rotor magnetic filament bar does spiral shell motion, has relative motion between stator magnetic nut and mover iron hoop；
Described rotor magnetic filament bar includes helical permanent magnet a, helical permanent magnet b and electrician iron hoop a, and helical permanent magnet a fills
Magnetic direction is radially-inwardly, and the magnetizing direction of helical permanent magnet b is radially outward, helical permanent magnet a and helical permanent magnet b with n,
The form Surface Mount of s pole turn of the screw is on the outer surface of electrician iron hoop a；
Described mover iron hoop includes spiral type electrician's iron hoop and fixing device, and spiral type electrician's iron hoop and non-magnet material are handed over
Staggered arrangement arranges, the both sides of the combination that fixing device placement is staggered by spiral type electrician's iron hoop and non-magnet material, is used for
Permanent magnetic field in rotor magnetic filament bar and stator magnetic nut is modulated, described spiral type electrician's iron hoop is dt4c electrician's iron material
Material, is a kind of high permeability material；
Described stator magnetic nut includes helical permanent magnet c, helical permanent magnet d and electrician iron hoop b, and helical permanent magnet c fills
Magnetic direction is radially-inwardly, and the magnetizing direction of helical permanent magnet d is radially outward, helical permanent magnet c and helical permanent magnet d with n,
The form Surface Mount of s pole turn of the screw is on the inner surface of electrician iron hoop b.
Further, the number of pole-pairs of described rotor magnetic filament bar is pr, the effective length of rotor magnetic filament bar is l, rotor magnetic filament bar
Pitch be λ1, meet
Further, the number of pole-pairs of described mover iron hoop is ns, effective length is l, and pitch is λ3, meet
Further, the number of pole-pairs of described stator magnetic nut is ps=ns-pr, its effective length and rotor magnetic filament bar and mover
The effective length of iron hoop is identical, is l, and pitch is λ2, meet
Further, the concept of magnetic Screw is mutually integrated with the concept of linear magnetic gear, by rotor magnetic filament bar, mover
The coupling of the number of pole-pairs of iron hoop and stator magnetic nut, realizes the modulation in the magnetic field of magnetic Screw actuating system.
Preferably, rotor magnetic filament bar number of pole-pairs pr=4, stator magnetic nut number of pole-pairs ps=9, mover iron hoop number of pole-pairs ns=
13.When rotor magnetic filament bar number of pole-pairs prWhen=4, work harmonic wave is 4 times, due to mover iron hoop number of pole-pairs ns=13, through mover ferrum
After ring modulation, there are 4 times and 9 times by the major harmonic that rotor magnetic filament bar produces.Stator magnetic nut number of pole-pairs ps=9, work harmonic wave
For 9 times, after the modulation of mover iron hoop, there are 4 times and 9 times by the major harmonic that stator magnetic nut produces.
The invention has the beneficial effects as follows:
1st, the present invention adopts magnetic Screw to integrate with linear magnetic gear, by from mover magnetic filament bar, stator magnetic nut and
So that stator magnetic nut is static, rotor magnetic filament bar rotates the different numbers of pole-pairs of mover iron hoop.According to linear magnetic gear and
The operation principle of magnetic Screw, mover iron hoop moves along a straight line, and vice versa sets up.Mover iron hoop is ferromagnetic material, is ensureing
On the premise of permanent magnet consumption will not increase, improve rectilinear path.
2nd, the present invention adopts magnetic field modulation device, and the magnetic field that rotor magnetic filament bar permanent magnet produces, by mover iron hoop adjustable magnetic
Afterwards, the magnetic field being produced with stator magnetic nut permanent magnet is cooperated in stator magnetic nut side.Conversely, stator magnetic nut permanent magnet produces
Raw magnetic field, after mover iron hoop adjustable magnetic, the magnetic field producing with rotor magnetic filament bar permanent magnet is in rotor magnetic filament bar side phase interworking
Close.For example in the present invention, rotor magnetic filament bar pr=4, stator magnetic nut number of pole-pairs ps=9, mover iron hoop number of pole-pairs ns=13, tool
Body number of poles coordinates, and can be chosen according to the requirement of magnetic Screw.
3rd, the present invention is applied to the fields such as Aero-Space, ocean power generation.Compare and traditional linear electric motors, due to magnetic force silk
Thick stick and linear magnetic gear are all magnetic drives, so having the advantages of overload capability is strong, and maintenance cost is low high with cleannes.This
Invention is particularly suited for high pushing force density, the linear motion field of Long travel.Traditional magnetic Screw, magnetic field modulation is single, forever
Magnetic material usage is big, and rectilinear path is restricted to be waited and determine, the development for magnetic Screw has inevitably restriction.Magnetic force silk
After thick stick is integrated with linear magnetic gear, problem above can be solved simultaneously.
Brief description
Accompanying drawing 1 is stereochemical structure half-section diagram of the present invention；
Accompanying drawing 2 is 2d plane graph schematic diagram of the present invention；
Accompanying drawing 3 is size marking figure of the present invention；
Accompanying drawing 4 is magnetic nut side of the present invention Gas-gap Magnetic Field Resonance Wave number of pole-pairs；
Accompanying drawing 5 is magnetic filament bar side Gas-gap Magnetic Field Resonance Wave number of pole-pairs of the present invention；
Accompanying drawing 6 is thrust of the present invention and torque profile figure；
Accompanying drawing 7 is torque profile figure of the present invention.
In figure: 1. rotor magnetic filament bar；2. mover iron hoop；3. stator magnetic nut；4-1. spiral type permanent magnet a；4-2. spiral
Shape permanent magnet b；5-1. helical permanent magnet c；5-2. helical permanent magnet d；6-1. spiral type electrician's iron hoop；6-2. fixing device；7-
1. electrician's iron hoop a；7-2. electrician iron hoop b.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
A kind of magnetic-field modulation-type magnetic Screw as shown in Figure 1-2, including rotor magnetic filament bar 1, mover iron hoop 2 and stator magnet spiral shell
Female 3, three is sequentially coaxially installed by order from inside to outside, between mover iron hoop 2 and rotor magnetic filament bar 1, mover iron hoop 2 and fixed
It is respectively provided with air gap, air gap thickness according to leading screw size and requires to choose, and rotor magnetic filament bar 1 does along the z-axis direction between sub- magnetic nut 3
Screw, stator magnetic nut 3 maintains static, and mover iron hoop 2 moves along a straight line along z-axis.
Rotor magnetic filament bar 1 includes helical permanent magnet a4-1, helical permanent magnet b4-2 and electrician iron hoop a7-1, helical permanent magnet
The magnetizing direction of a4-1 is radially-inwardly, and the magnetizing direction of helical permanent magnet b4-2 is radially outward, helical permanent magnet a4-1 and
Helical permanent magnet b4-2 in the form of the turn of the screw of n, s pole Surface Mount on the outer surface of electrician iron hoop a7-1；
Mover iron hoop 2, including spiral type electrician iron hoop 6-1 and fixing device 6-2, spiral type electrician iron hoop 6-1 and non-lead
Magnetic material (shape is identical with spiral type electrician iron hoop 6-1) is staggered, and fixing device 6-2 is placed on by spiral type electrician's iron hoop
The both sides of the combination that 6-1 and non-magnet material are staggered, mover iron hoop 2 is used for rotor magnetic filament bar 1 and stator magnet spiral shell
Permanent magnetic field in female 3 is modulated, and spiral type electrician iron hoop 6-1 is dt4c electrician's iron material, is a kind of high permeability material；
Stator magnetic nut 3 includes helical permanent magnet c5-1, helical permanent magnet d5-2 and electrician iron hoop b7-2, helical permanent magnet
The magnetizing direction of c5-1 is radially-inwardly, and the magnetizing direction of helical permanent magnet d5-2 is radially outward, helical permanent magnet c5-1 and
Helical permanent magnet d5-2 in the form of the turn of the screw of n, s pole Surface Mount on the inner surface of electrician iron hoop b7-2.
As shown in figure 3, rotor magnetic filament bar 1, mover iron hoop 2 are identical with the effective length of stator magnetic nut 3, it is l, rotor
The number of pole-pairs of magnetic filament bar 1 is pr, pitch is λ1, meetThe number of pole-pairs of mover iron hoop 2 is ns, pitch is λ3, meetThe number of pole-pairs of stator magnetic nut 3 is ps=ns-pr, pitch is λ2, meet
The present invention is that this magnetic Screw is mutually integrated with linear magnetic gear, by rotor magnetic filament bar 1, mover iron hoop 2 and fixed
The coupling of the number of pole-pairs of sub- magnetic nut 3, realizes the modulation in the magnetic field of magnetic Screw actuating system.
It is the fundamental diagram of the present invention as shown in Figure 4 and Figure 5, the choosing of the number of pole-pairs that it is critical only that each part of the present invention
Take.In the present invention, the number of pole-pairs of rotor magnetic filament bar 1 is pr=4, number of pole-pairs p of stator magnetic nut 3s=9, the pole of mover iron hoop 2
Logarithm ns=13.When showing the permanent magnet independent role by rotor magnetic filament bar 1 as Fig. 4, in the air gap of stator magnetic nut 3 side
Overtone order, after the modulation of mover iron hoop 2, near stator magnetic nut 3 side air gap in major harmonic be 4 times and 9
Secondary.Harmonic wave when Fig. 5 shows the permanent magnet independent role by stator magnetic nut 3, in the air gap of rotor magnetic filament bar 1 side
Number, after the modulation of mover iron hoop 2, the major harmonic in the air gap of rotor magnetic filament bar 1 side is 9 times and 4 times.
As shown in Figure 6 and Figure 7, it is the thrust of modulated magnetic Screw and the oscillogram of torque.Due to introducing mover
Iron hoop 2 is so that the torque of the thrust of rotor magnetic filament bar 1 and the thrust of stator magnetic nut 3 and rotor magnetic filament bar 1 and stator magnet spiral shell
Between female 3 torque, there is rotation and compare relation.As shown in fig. 6, because the permanent magnet pole logarithm of rotor magnetic filament bar 1 is 4, stator magnet
The number of pole-pairs of nut 3 is 9, between there is the gear ratio of 1:2.25, so under identical displacement, the thrust of stator magnetic nut 3
The amplitude of Amplitude Ration rotor magnetic filament bar 1 is high 2.25 times, and the cycle is also high 2.25 times.As shown in fig. 7, the situation in identical electrical angle
Under, the torque amplitude of stator magnetic nut 3 is higher than the amplitude of rotor magnetic filament bar 1 2.23 times.Meet the work of modulation system magnetic Screw
Principle.Can see that after improvement, modulation system magnetic Screw ensure that high thrust is close in the case of keeping remaining parameter constant
While the feature of degree, solve traditional magnetic Screw, magnetic field modulation is single, permanent magnet material consumption is big, and rectilinear path is restricted
The problems such as.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features, the knot describing with reference to this embodiment or example
Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or spy
Point can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Multiple changes, modification, replacement and modification can be carried out to these embodiments in the case of the principle of the disengaging present invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (5)
1. a kind of magnetic-field modulation-type magnetic Screw is it is characterised in that include rotor magnetic filament bar (1), mover iron hoop (2) and stator magnet
Nut (3), three is sequentially coaxially installed by order from inside to outside, between mover iron hoop (2) and rotor magnetic filament bar (1), mover
Be respectively provided with air gap between iron hoop (2) and stator magnetic nut (3), rotor magnetic filament bar (1) is spinned motion, stator magnetic nut (3) and
Mover iron hoop has relative motion between (2)；
Described rotor magnetic filament bar (1) includes helical permanent magnet a (4-1), helical permanent magnet b (4-2) and electrician iron hoop a (7-1), spiral shell
The magnetizing direction of rotation permanent magnet a (4-1) is radially-inwardly, and the magnetizing direction of helical permanent magnet b (4-2) is radially outward spiral
Permanent magnet a (4-1) and helical permanent magnet b (4-2) in the form of the turn of the screw of n, s pole Surface Mount in the appearance of electrician iron hoop a (7-1)
On face；
Described mover iron hoop (2), including spiral type electrician's iron hoop (6-1) and fixing device (6-2), spiral type electrician iron hoop (6-
1) it is staggered with spiral type non-magnet material, fixing device (6-2) is placed on by spiral type electrician's iron hoop (6-1) and non-magnetic
The both sides of the combination that material is staggered, described mover iron hoop (2) is used for rotor magnetic filament bar (1) and stator magnetic nut
(3) permanent magnetic field in is modulated；
Described stator magnetic nut (3) includes helical permanent magnet c (5-1), helical permanent magnet d (5-2) and electrician iron hoop b (7-2), spiral shell
The magnetizing direction of rotation permanent magnet c (5-1) is radially-inwardly, and the magnetizing direction of helical permanent magnet d (5-2) is radially outward spiral
Permanent magnet c (5-1) and helical permanent magnet d (5-2) in the form of the turn of the screw of n, s pole Surface Mount in the interior table of electrician iron hoop b (7-2)
On face.
2. a kind of magnetic-field modulation-type magnetic Screw according to claim 1 is it is characterised in that described spiral type electrician's iron hoop
(6-1) it is dt4c electrician's iron material, be a kind of high permeability material.
3. a kind of magnetic-field modulation-type magnetic Screw according to claim 1 is it is characterised in that described rotor magnetic filament bar (1)
Number of pole-pairs be pr, the effective length of rotor magnetic filament bar (1) is l, and the pitch of rotor magnetic filament bar (1) is λ1, meet
The number of pole-pairs of described mover iron hoop (2) is ns, effective length is l, and pitch is λ3, meet
The number of pole-pairs of described stator magnetic nut (3) is ps=ns-pr, its effective length and rotor magnetic filament bar (1) and mover iron hoop
(2) effective length is identical, is l, and pitch is λ2, meet
4. a kind of magnetic-field modulation-type magnetic Screw according to claim 1 is it is characterised in that by rotor magnetic filament bar
(1), the coupling of the number of pole-pairs of mover iron hoop (2) and stator magnetic nut (3), realizes the tune in the magnetic field of magnetic Screw actuating system
System.
5. a kind of magnetic-field modulation-type magnetic Screw according to claim 3 or 4 is it is characterised in that described rotor magnetic filament bar
(1) number of pole-pairs pr=4, stator magnetic nut (3) number of pole-pairs ps=9, mover iron hoop (2) number of pole-pairs ns=13；When rotor magnetic filament bar
(1) number of pole-pairs prWhen=4, work harmonic wave is 4 times, due to mover iron hoop number of pole-pairs ns=13, after mover iron hoop (2) modulation,
There are 4 times and 9 times by the major harmonic that rotor magnetic filament bar (1) produces；Stator magnetic nut (3) number of pole-pairs ps=9, work harmonic wave is 9
Secondary, after mover iron hoop (2) modulation, there are 4 times and 9 times by the major harmonic that stator magnetic nut produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821273.1A CN106341031B (en) | 2016-09-13 | 2016-09-13 | A kind of magnetic-field modulation-type magnetic Screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821273.1A CN106341031B (en) | 2016-09-13 | 2016-09-13 | A kind of magnetic-field modulation-type magnetic Screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106341031A true CN106341031A (en) | 2017-01-18 |
| CN106341031B CN106341031B (en) | 2018-12-14 |
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ID=57838955
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|---|---|---|---|
| CN201610821273.1A Active CN106341031B (en) | 2016-09-13 | 2016-09-13 | A kind of magnetic-field modulation-type magnetic Screw |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107733206A (en) * | 2017-10-27 | 2018-02-23 | 江苏大学 | A kind of permanent magnetism body surface embedded magnetic Screw and its processing method |
| CN107896047A (en) * | 2017-11-22 | 2018-04-10 | 哈尔滨工业大学 | Simplex winding composite excitation magnetic Screw |
| WO2018195556A1 (en) * | 2017-04-22 | 2018-10-25 | Portland State University | A low cost magnetically geared lead screw (mgls) |
| EP3410588A1 (en) * | 2017-05-29 | 2018-12-05 | Deere & Company | Magnetic epicyclic gear with variable torque |
| CN109218584A (en) * | 2018-10-15 | 2019-01-15 | 信利光电股份有限公司 | A kind of tune axis photographic device and camera shooting terminal |
| CN109218585A (en) * | 2018-10-15 | 2019-01-15 | 信利光电股份有限公司 | A kind of tune axis photographic device and camera shooting terminal |
| CN109462719A (en) * | 2018-10-15 | 2019-03-12 | 信利光电股份有限公司 | A kind of adjustable more photographic devices of FOV and camera shooting terminal |
| CN110034658A (en) * | 2019-04-19 | 2019-07-19 | 哈尔滨工业大学 | Novel magnetic field modulation system magnetic Screw |
| CN110518764A (en) * | 2019-07-25 | 2019-11-29 | 江苏大学 | A kind of electromagnetic suspension linear actuator |
| CN111271214A (en) * | 2020-02-18 | 2020-06-12 | 上海海事大学 | Wave power generation device |
| CN111509948A (en) * | 2020-03-23 | 2020-08-07 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation type magnetic screw actuator and integrated design method thereof |
| CN112128285A (en) * | 2020-09-14 | 2020-12-25 | 湖南大学 | Vertical tuned mass magnetic screw type inertial capacitance eddy current damper |
| CN116232004A (en) * | 2023-02-28 | 2023-06-06 | 江苏大学 | Magnetic screw actuator based on three-dimensional modulation effect and design method thereof |
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| CN105186832A (en) * | 2015-09-07 | 2015-12-23 | 江苏大学 | Embedded magnetic screw capable of reducing output thrust pulsation |
| CN105743322A (en) * | 2016-04-08 | 2016-07-06 | 江苏大学 | Surface-mounted magnetic lead screw and processing method thereof |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018195556A1 (en) * | 2017-04-22 | 2018-10-25 | Portland State University | A low cost magnetically geared lead screw (mgls) |
| EP3410588A1 (en) * | 2017-05-29 | 2018-12-05 | Deere & Company | Magnetic epicyclic gear with variable torque |
| CN107733206A (en) * | 2017-10-27 | 2018-02-23 | 江苏大学 | A kind of permanent magnetism body surface embedded magnetic Screw and its processing method |
| CN107896047B (en) * | 2017-11-22 | 2019-09-13 | 哈尔滨工业大学 | Simplex winding composite excitation magnetic Screw |
| CN107896047A (en) * | 2017-11-22 | 2018-04-10 | 哈尔滨工业大学 | Simplex winding composite excitation magnetic Screw |
| CN109218584A (en) * | 2018-10-15 | 2019-01-15 | 信利光电股份有限公司 | A kind of tune axis photographic device and camera shooting terminal |
| CN109462719A (en) * | 2018-10-15 | 2019-03-12 | 信利光电股份有限公司 | A kind of adjustable more photographic devices of FOV and camera shooting terminal |
| CN109218585A (en) * | 2018-10-15 | 2019-01-15 | 信利光电股份有限公司 | A kind of tune axis photographic device and camera shooting terminal |
| CN110034658A (en) * | 2019-04-19 | 2019-07-19 | 哈尔滨工业大学 | Novel magnetic field modulation system magnetic Screw |
| CN110518764A (en) * | 2019-07-25 | 2019-11-29 | 江苏大学 | A kind of electromagnetic suspension linear actuator |
| CN111271214A (en) * | 2020-02-18 | 2020-06-12 | 上海海事大学 | Wave power generation device |
| CN111271214B (en) * | 2020-02-18 | 2022-02-01 | 上海海事大学 | Wave power generation device |
| CN111509948A (en) * | 2020-03-23 | 2020-08-07 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation type magnetic screw actuator and integrated design method thereof |
| WO2021189595A1 (en) * | 2020-03-23 | 2021-09-30 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation-type magnetic screw actuator and integrated design method therefor |
| CN111509948B (en) * | 2020-03-23 | 2022-01-11 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation type magnetic screw actuator and integrated design method thereof |
| CN112128285A (en) * | 2020-09-14 | 2020-12-25 | 湖南大学 | Vertical tuned mass magnetic screw type inertial capacitance eddy current damper |
| CN116232004A (en) * | 2023-02-28 | 2023-06-06 | 江苏大学 | Magnetic screw actuator based on three-dimensional modulation effect and design method thereof |
| CN116232004B (en) * | 2023-02-28 | 2023-09-26 | 江苏大学 | Magnetic screw actuator based on three-dimensional modulation effect and design method thereof |
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|---|---|
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